People with the last name Jahncke in Wisconsin
- Aaron Jahncke
- Arthur Jahncke
- Audrey Jahncke
- Charles Jahncke
- Christine Jahncke
- David Jahncke
- Donald Jahncke
- Emily Jahncke
- Harriet Jahncke
- Kenneth Jahncke
- Leona Jahncke
- Lois Jahncke
- Marjorie Jahncke
- Michael Jahncke
- Nathan Jahncke
- Patricia Jahncke
- Ralph Jahncke
- Robert Jahncke
- Susan Jahncke
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